I'm running an unlocked G6, a US model. Still no Pie update, aside from the January 2019 security patch. Some users in other countries outside of North America have reported receiving the Pie update for the G6. I also bought a G6 Play as a backup, and that one doesn't have Pie, either. I think Lenovo's stiffing their US customers on updates... I do realize there may be some regulatory issues involved.
In any case, I have at least 1 1/2 years left before I consider an upgrade. My next phone may not be a Motorola.